King Street in St James's is a low carbon footway replacement scheme delivered by the City of Westminster and FM Conway. The first scheme in a transition to a low-carbon delivery model.

Westminster City Council and FM Conway have both set out ambitious targets to achieve carbon neutrality in advance of the Government’s 2050 target and are working collaboratively on a low-carbon street-works pilot that could transform the way public realm projects are designed and delivered in support of the climate emergency agenda.
Westminster City Council deliver approximately £50m worth of public realm schemes annually and have previously worked with FM Conway on high-profile projects in the borough, however their latest collaboration aims to deliver ground-breaking change, not only for the industry, but the future of our nation’s capital.
King Street, home to some of the most prestigious buildings in Westminster, is undergoing a repair and replacement of the footpath and kerbs, which extends from St James’s Square to its junction with St James’s Street and features an existing footway constructed of artificial stone paving, with areas of granite setts and block paving.
As part of a six-week maintenance project set to rejuvenate the area and minimise carbon footprint, the scheme will use low-carbon electric plant, tools, welfare and recycled materials, the removal of diesel and petrol equipment, and the reduced consumption of natural resources. Furthermore, travel to and from site will be reduced with carbon-friendly forms of travel used, and all plant brought to site using electric vehicles or vehicles powered with HVO fuel where electric is not possible.
Using a carbon calculating tool and a second site, Marlborough Hill, the project will be able to assess the full life cycle impacts for comparison, to target the extent and scale that the scheme has reduced embodied carbon.
Ultimately, King Street will be a catalyst set to transform the industry and transition us into a new carbon-friendly delivery model, ensuring that we have the blueprint for providing London with a greener future.